High-strength coal chemical industry flat gate valve

The utility model discloses a high-strength flat gate valve for a coal chemical industry. The valve comprises a valve body and a first rotating handle, a cleaning cover is fixedly connected to the topof the middle of the valve body through bolts, the first rotating handle is rotatably connected to the center of the top of the cleaning cover, a flat gate is slidably connected to the center of theinterior of the valve body, and the flat gate is in transmission connection with the first rotating handle through a first screw rod which is rotatably connected. According to the utility model, the first rotating handle is linked with a flat gate rotationally connected with the bottom through a first screw rod to move upwards; the latch sleeve is driven by the bearing through the bearing; the rotating latch sleeve is in engaged transmission connection with the bevel gear to rotate; due to the fact that the linear speeds of the latch sleeve and the bevel gear are the same, the rotating speed of the cleaning disc coaxia